All cogent antonyms
co·gent
C c adjective cogent
- unconvincing — persuading or assuring by argument or evidence: They gave a convincing demonstration of the car's safety features.
adj cogent
- ineffective — not effective; not producing results; ineffectual: ineffective efforts; ineffective remedies.
- unimportant — of much or great significance or consequence: an important event in world history.
- impotent — not potent; lacking power or ability.
- invalid — an infirm or sickly person.
- weak — not strong; liable to yield, break, or collapse under pressure or strain; fragile; frail: a weak fortress; a weak spot in armor.